<template>
  <div>
    <div>【大区数据信息】</div>
    <div ref="target" class=" w-full h-full"></div>
  </div>
</template>

<script setup>
import { onMounted, ref, watch } from 'vue'
import * as echarts from 'echarts'
const props = defineProps({
  data: {
    type: Object,
    required: true
  }
});

// 1. 初始化 echarts 实例
const target = ref(null);
let mChart = null;
onMounted(() => {
  mChart = echarts.init(target.value)
  renderChart()
})
// 2. 构建 option 配置项
const renderChart = () => {
  const options = {
    // X轴展示数据
    xAxis: {
      show: false,
      type: 'value',
      max: function (value) { return parseInt(value.max * 1.2) }
    },
    // Y轴展示数据
    yAxis: {
      type: 'category',
      data: props.data.regions.map(item => item.name),
      invert: true,
      axisLine: {
        show: false,
      },
      axisTick: {
        show: false
      },
      axisLabel: {
        color: '#9eb1c8'
      }
    },
    grid: {
      top: 0,
      right: 0,
      bottom: 0,
      left: 0,
      containLabel: true
    },
    series: [
      {
        type: 'bar',
        data: props.data.regions.map(item => ({
          name: item.name,
          value: item.value,
        })),
        showBackground: true,
        backgroundStyle: {
          color: 'rgba(180, 180, 180, 0.2)'
        },
        itemStyle: {
          color: '#479AD3',
          barBorderRadius: 5,
          shadowColor: 'rgba(0, 0, 0, 0.3)',
          shadowBlur: 5,
        },
        barWidth: 12,
        label: {
          show: true,
          position: 'right',
          textStyle: {
            color: '#fff'
          }
        }
      }
    ]
  }
  // 3. 将 option 配置项设置到 echarts 实例中
  mChart.setOption(options)
}

watch(() => props.data, () => {
  renderChart()
})

</script>

<style lang="scss" scoped></style>
